I have no idea if C newbies are welcome here, so I have a novice problem which I cannot figure out. This is just an exercise from a book. There are two problems: 1st: as per following screenshot, the menu is displayed twice, following the 1st operation. 2nd: the calculation is wrong for hourly workers who worked more than 40 hours. They should be paid 1.5 times the hourly rate for each hour over 40 hours. The code is: Code: #include <stdio.h> int main() { char ch; float weeklyPay; printf("Select the relevant employee type (press ctrl-z to exit): \n"); printf("m (manager)\n"); printf("h (hourly workers)\n"); printf("c (commission workers)\n"); printf("p (piece-workers)\n"); ch = getchar(); while(ch != EOF) { switch(ch) { case 'm': printf("Enter the manager's salary: \n"); int salary; scanf("%d", &salary); weeklyPay = (float)salary / 52; printf("Manager's weekly pay is: $%.2f", weeklyPay); break; case 'h': printf("Enter the number of hours worked: "); int hours = 0; float hourlyRate = 0; scanf("%i", &hours); printf("Enter the hourly rate: "); scanf("%f", &hourlyRate); if(hours < 41) weeklyPay = (float)hours * hourlyRate; else weeklyPay = (float)(40 * hourlyRate) + ((40 - hours) * 1.5 * hourlyRate); printf("Hourly worker's weekly pay was $%.2f\n\n", weeklyPay); break; } printf("Select the relevant employee type (press ctrl-z to exit): \n"); printf("\tm (manager)\n"); printf("\th (hourly workers)\n"); printf("\tc (commission workers)\n"); printf("\tp (piece-workers)\n"); ch = getchar(); } return 0; } Thanks